While driving in traffic, the car unexpectedly applied the brakes and displayed a 'Service High Voltage System' warning on the dashboard. Shortly after, another message appeared: 'Service Vehicle Soon, ' followed by 'Reduced Acceleration - Drive with Care.' The car isn't charging and lacks the speed needed to drive on the highway.

- Dix Hills, NY, USA

I have had my prologue for about two months now and have noticed that I receive a warning about reduced acceleration "randomly." I say -??randomly-?? because I-??ve observed that it appears during two specific situations. I get that warning whenever I-??m low (less than 20%), so this is not random as it seems consistent. The other time this occurs is when I am driving or just starting my car (the battery percentage doesn-??t matter, as it happens when it-??s between 30% and 80%. Also, it happens when the temperature is below and above freezing). However, the latter situation occurs randomly and seems to happen more frequently while driving, though it also occurs when I am just starting the car. On top of that, the Forward Collision Warning system is extremely sensitive and has caused the car to brake hard unnecessarily on me with and without Adaptive Cruise Control enabled. Sometimes it even warns me of something that isn't even there.

- Elizabeth, NJ, USA

Complete Electric Failure multiple times now. Been in the shop multiple times.

- Porterville, CA, USA

I was driving on the freeway when a few error lights came on-?"the Reduced Acceleration, Propulsion System Icon, and a turtle icon on the dashboard and I had to floor the accelerator pedal to maintain my speed. I then pulled over, and the vehicle wouldn-??t shift into drive or reverse. It gave an error message saying -??conditions not meet.-?? Eventually, the car started working again. This is an ongoing issue with the car and Honda doesn-??t want to do a buyback, this car is a lemon. I keep taking it to the dealer and all they do is clear the codes and state they can-??t -??duplicate-?? any of my concerns.

- Escondido, CA, USA

Service High Voltage System Reduced Acceleration - Drive with Care Service Vehicle Soon There is a very prevalent problem with the new EV Honda Prologues. Mine has been in the shop since last Friday, Jan. 17. The parts "are on backorder" with Honda refusing to state how long it will take for parts to come in.

- Allentown, PA, USA

The forward collision sensor failed to work after 2500 miles, disabling my ability to use adaptive cruise control. I've thoroughly cleaned the area where the two sensors are and it made no difference.

- Divide, CO, USA

Car will stop abruptly even when simply reversing out of my garage when there are no obstacles behind me. This poses a safety risk to me and others. Car has not been inspected. I was told by the dealer this is a known complaint. No warning lights or messages.

- Trumbull, CT, USA

On 13 August 2024 I was driving my 2024 Honda Prologue when the DIC and infotainment screens went blank. At this time with no information displayed on any screen, the car was unsafe to operate. I drove the car straight to the local dealer, Tony Honda. The dealer was unable to diagnose the problem. After contacting Honda Tech support, they decided the audio control unit was defective. After 65 days the dealer was able to replace the unit and it seems to work properly. Honda informed the dealer the car was safe to operate without any display screens or information. Actually the car was unsafe to drive with no speedometer indication or any other control functioning.

- Kailua-Kona, HI, USA

On [XXX], around 8 PM, I was driving north towards DeLand, Florida on the highway at approximately 70+ miles per hour when my 2024 Honda Prologue started to slow down on its own. The air conditioning system shut down, and a warning displayed on the dash: -??Service High Voltage System.-?? I immediately drove home and contacted CarSafely, fearing that the car might become stranded and was not safe to drive. The following morning (Tuesday, [XXX]), around 8 AM, I emailed and called the Coggin DeLand Honda service department, informing them of the issue and sharing photos and a video of the incident. The error/warning disappeared after turning the vehicle on and off several times. Coggin advised me to bring the car in the next time the warning appeared on my dashboard. On Thursday, [XXX], around 12 PM, I was driving on [XXX] towards Daytona Beach at around 70 mph when the vehicle suddenly slowed down again. The air conditioning system shut down, and the service warning -??Service High Voltage System-?? appeared on my dashboard once more. I immediately got off the highway and stopped at a safe location to turn off the vehicle and document the error and warning on my dashboard. I emailed Coggin DeLand Honda again to inform them of the issue. On Friday, July 5, 2024, I took the car to the Coggin DeLand Honda service department, where they connected the vehicle to their computer for a diagnosis. The service department detected the error and reset/cleared the error code. However, the service tech informed me that they could not fix the issue due to insufficient information, as the vehicle was built by GM (General Motors Corporation). They advised me to return directly to the dealer without an appointment if the error reappeared. On Monday, [XXX], around 8 AM, while driving at approximately 25 miles per hour on a local road near my home, the -??Service High Voltage System-?? error reappeared. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Deland, FL, USA